#!/usr/bin/env python3
# -*- coding: utf-8 -*-

""" 文件描述内容 """

__auther__ = 'igofishing'


import numpy as np
from matplotlib import pyplot as plt


n = 1024

X = np.random.normal(0, 1, n)
Y = np.random.normal(0, 1, n)

T = np.arctan2(Y, X)

# 标记坐标 (就是散点图)
plt.scatter(X, Y, alpha=0.5, s=75, c=T)

plt.show()
